National Stock Number:
6625-01-217-6254
Federal Supply Class:
6625
National Item Identification Number:
012176254
Description:
FREQUENCY STANDARD
Detail:
AN ITEM THAT CAN GENERATE A FUNDAMENTAL FREQUENCY WITH A HIGH DEGREE OF ACCURACY. HARMONICS OF THIS FUNDAMENTAL ARE THEN USED AS A REFERENCE POINT FOR CHECKING THROUGHOUT THE RADIO SPECTRUM. THE STANDARD MAY BE STABLE CRYSTAL OSCILLATOR, NONCRYSTAL OSCILLATOR, TUNING FORK, ATOMIC BEAM, MOLECULAR BEAM, GAS CELL, QUANTUM MECHANICAL RESONATOR, OR THE LIKE.
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